About the Number

128139840

128139839 ← → 128139841

2進数表記:111101000110100001001000000

漢数字表記:一億二千八百十三万九千八百四十

素因数分解:

2 6 × 3 3 × 5 1 × 14831 1

素因数の和:14857
約数の個数: 112
約数和(自身を含む): 452079360
約数和(自身を除く): 323939520

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640, 14831, 29662, 44493, 59324, 74155, 88986, 118648, 133479, 148310, 177972, 222465, 237296, 266958, 296620, 355944, 400437, 444930, 474592, 533916, 593240, 667395, 711888, 800874, 889860, 949184, 1067832, 1186480, 1334790, 1423776, 1601748, 1779720, 2002185, 2135664, 2372960, 2669580, 2847552, 3203496, 3559440, 4004370, 4271328, 4745920, 5339160, 6406992, 7118880, 8008740, 8542656, 10678320, 12813984, 14237760, 16017480, 21356640, 25627968, 32034960, 42713280, 64069920, 128139840]

約数ペア:
[(1, 128139840), (2, 64069920), (3, 42713280), (4, 32034960), (5, 25627968), (6, 21356640), (8, 16017480), (9, 14237760), (10, 12813984), (12, 10678320), (15, 8542656), (16, 8008740), (18, 7118880), (20, 6406992), (24, 5339160), (27, 4745920), (30, 4271328), (32, 4004370), (36, 3559440), (40, 3203496), (45, 2847552), (48, 2669580), (54, 2372960), (60, 2135664), (64, 2002185), (72, 1779720), (80, 1601748), (90, 1423776), (96, 1334790), (108, 1186480), (120, 1067832), (135, 949184), (144, 889860), (160, 800874), (180, 711888), (192, 667395), (216, 593240), (240, 533916), (270, 474592), (288, 444930), (320, 400437), (360, 355944), (432, 296620), (480, 266958), (540, 237296), (576, 222465), (720, 177972), (864, 148310), (960, 133479), (1080, 118648), (1440, 88986), (1728, 74155), (2160, 59324), (2880, 44493), (4320, 29662), (8640, 14831)]

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